After the proclamation of the republic on 29 October 1923, the governor of the city was charged with the duties as deputy mayor. With the municipality act of 3 April 1930, the title of mayor was abandoned and the governor of
Istanbul province took over the duties of the mayor. The two separate councils of the province and the municipality were unified. The two councils were reestablished on 1 March 1957. • 1 Bahri Uğur 1923–1926 • 2 Muharrem Alacalı 1926–1932 • 3 Fevzi Eken 1932–1934 • 4 Zihni Aksoy 1934–1938 • 5 Sıtkı Eken 1942–1943 • 6 Kazım Kaleli 1943–1944 • 7 Kazım Ahçıoğlu 1944–1946 • 8 Salim Eken 1946– 1948 • 9 Rahmi Kayran 1948–1950 • 10 Ahmet Vanlı 1950–1954 • 11 İsmail Odabaş 1954–1955 • 12 Macir R. Gürsoy 1955–1957 • 13 İhsan Sarısoy 1957–1960 ==Military rule (1960–1963)==